All Stories
- Earth
Eye of the Tiger
Recent research has upended a 130-year-old, previously unchallenged theory about how the semiprecious stone called tiger's-eye is formed.
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19314
This article addresses how much energy is given up in the viscous processes of a thin sheet of turbulent fluid. The technique used to stir the soap film grabbed my attention. Is it possible that the electromagnetic emissions from the sun influence Earth’s winds in an analogous manner by acting on the naturally occurring ions […]
- Physics
Answer blows in wind, swirls in soap
A swirling soap film gives new clues to how turbulent flows, such as the circulation of Earth's atmosphere, squander their energy.
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- Astronomy
Telescope takes close-ups of distant star
Radio astronomers have for the first time probed ejected gas in the immediate surroundings of a distant star.
- Paleontology
Feathered fossil still stirs debate
More than 2 years after scientists first described 120-million-year-old fossils of a feathered animal, a new analysis seems to bolster the view that the turkey-size species was a bird has-been and not a bird wanna-be.
- Tech
Nanotechnologists get a squirt gun, almost
A novel computer simulation of molecular behavior suggests that a minuscule squirt gun able to spit liquids a few hundred nanometers ought to work.
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Skin cells reveal they have hairy origins
The outer layers of the skin may spring from cells in hair follicles.
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19236
I have some questions regarding the statistics presented in this article. It states that up to 19 percent of women undergoing abortion experience regrets afterward. However, 50 percent of the women in the study have had multiple abortions. It seems reasonable to assume that these women would be far less likely to have regrets than […]
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Study explores abortion’s mental aftermath
A majority of women report no increase in psychological problems after having an abortion, although nearly one in five express dissatisfaction and regret 2 years later about their decision.
- Astronomy
Young pulsar has a split personality
A new pulsar, the youngest discovered to date, unexpectedly exhibits properties of both regular pulsars and a recently explored class of supermagnetic pulsars, the magnetars.
